package com.example.mapper;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.example.entiys.User;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

@Mapper
public interface UserMapper extends BaseMapper<User>{
    @Select("select * from user where  username = #{username}")
    User login(String username);
}
